High toughness cement-based material and preparation method thereof
A cement-based material with high toughness technology, applied in the field of building materials, can solve problems such as poor toughness, low tensile strength of concrete, and difficult to control crack width, achieve high impact toughness, improve mechanical properties and thermal stability, crack and The effect of reducing the probability of breakage
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Embodiment 1
[0024] A high-toughness cement-based material, comprising the following raw materials in parts by weight: 10 parts of styrene-butadiene emulsion, 30 parts of Portland cement, 15 parts of fly ash, 7 parts of composite reinforcing fiber, 6 parts of silica fume, and 4 parts of mica powder 1 part, 1 part of dispersant, 2 parts of water reducer, 0.5 part of thickener and 12 parts of water.
[0025] Wherein, the composite reinforcing fiber is a composition of carbon fiber and polyimide fiber with a weight ratio of 2:1.
[0026] Wherein, the fly ash is primary fly ash.
[0027] Wherein, the dispersant is copper stearate.
[0028] Wherein, the water reducer is a high-efficiency polycarboxylate water reducer with a solid content of 40% and a water reducing rate of 25%.
[0029] Wherein, the thickener is cellulose ether.
[0030] The present invention also provides a preparation method for the above-mentioned high-toughness cement-based material, comprising the following steps:
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Embodiment 2
[0035] A high-toughness cement-based material, comprising the following raw materials in parts by weight: 20 parts of styrene-butadiene emulsion, 50 parts of Portland cement, 25 parts of fly ash, 15 parts of composite reinforcing fiber, 14 parts of silica fume, and 10 parts of mica powder 5 parts, 5 parts of dispersant, 5 parts of water reducer, 3.5 parts of thickener and 18 parts of water.
[0036] Wherein, the composite reinforcing fiber is a composition of carbon fiber and polyimide fiber with a weight ratio of 4:1.
[0037] Wherein, the fly ash is primary fly ash.
[0038] Wherein, the dispersant is copper stearate.
[0039] Wherein, the water reducer is a high-efficiency polycarboxylate water reducer with a solid content of 40% and a water reducing rate of 25%.
[0040] Wherein, the thickener is cellulose ether.
[0041] The present invention also provides a preparation method for the above-mentioned high-toughness cement-based material, comprising the following steps:...
Embodiment 3
[0046] A high-toughness cement-based material, comprising the following raw materials in parts by weight: 15 parts of styrene-butadiene emulsion, 40 parts of Portland cement, 20 parts of fly ash, 11 parts of composite reinforcing fiber, 10 parts of silica fume, and 7 parts of mica powder 3 parts, 3 parts of dispersant, 3.5 parts of water reducer, 2 parts of thickener and 15 parts of water.
[0047] Wherein, the composite reinforcing fiber is a composition of carbon fiber and polyimide fiber with a weight ratio of 3:1.
[0048] Wherein, the fly ash is primary fly ash.
[0049] Wherein, the dispersant is copper stearate.
[0050] Wherein, the water reducer is a high-efficiency polycarboxylate water reducer with a solid content of 40% and a water reducing rate of 25%.
[0051] Wherein, the thickener is cellulose ether.
[0052] The present invention also provides a preparation method for the above-mentioned high-toughness cement-based material, comprising the following steps: ...
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